* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

:root {
    --background-color: #f0f4f8;
    --text-color: #333;
    --primary-color: #4CAF50;
    --secondary-color: #555;
    --accent-color: #FF5722;
    --button-bg: #ffffff;
    --button-hover: #f0f0f0;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-dark: rgba(0, 0, 0, 0.3);
}

.dark-mode {
    --background-color: #121212;
    --text-color: #e0e0e0;
    --button-bg: #1e1e1e;
    --button-hover: #292929;
    --shadow-light: rgba(255, 255, 255, 0.1);
    --shadow-dark: rgba(255, 255, 255, 0.2);
}

header {
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--button-bg);
    box-shadow: 0 2px 4px var(--shadow-light);
}

header h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.header-buttons button {
    font-size: 1.2rem;
    margin: 0rem 4px;
    height: 40px;
    width: 40px;
    border: none;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: #fff;
    cursor: pointer;
    box-shadow: 0 4px 6px var(--shadow-light);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.header-buttons button:hover {
    background-color: var(--accent-color);
    box-shadow: 0 6px 10px var(--shadow-dark);
}

main {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 120px);
    padding: 2rem;
}

.game-container {
    text-align: center;
    background-color: var(--button-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 6px 12px var(--shadow-light);
    max-width: 600px;
    width: 100%;
}

.score-board {
    display: flex;
    justify-content: space-around;
    margin-bottom: 2rem;
}

.score {
    text-align: center;
}

.score h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.score p {
    font-size: 2rem;
    font-weight: 700;
}

.message-container {
    margin-bottom: 2rem;
}

.message-container p {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.choices {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.choice {
    width: 100px;
    height: 100px;
    background-color: var(--button-bg);
    border: 3px solid transparent;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    cursor: pointer;
    transition: transform 0.3s ease, border 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.choice:hover {
    transform: scale(1.1);
    border-color: var(--primary-color);
    box-shadow: 0 6px 12px var(--shadow-dark);
}

#rock {
    background-image: url('assets/rock.jpg');
    background-color: #f083a2;
}

#paper {
    background-image: url('assets/paper.jpg');
    background-color: #c38edc;
}

#scissors {
    background-image: url('assets/scissor.jpg');
    background-color: #7facff;
}

footer {
    position: fixed;
    left: 0px;
    right: 0px;
    bottom: 0;
    text-align: center;
    padding: 1rem;
    background-color: var(--button-bg);
    color: var(--secondary-color);
    font-size: 0.9rem;
    box-shadow: 0 -2px 4px var(--shadow-light);
}

@media (max-width: 768px) {
    .score-board {
        gap: 1rem;
    }

    .choices {
        flex-wrap: wrap;
    }

    .choice {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    header{
        padding: 0.75rem 1.5rem;
    }
    header h1 {
        font-size: 1.2rem;
    }

    .choice {
        width: 60px;
        height: 60px;
    }

    .message-container p {
        font-size: 1.2rem;
    }
    .header-buttons button{
        height: 35px;
        width: 35px;
        font-size: 1rem;
        margin: 0px;
}
}